PHILADELPHIA — Princeton and Harvard are set for their toughest test yet: A one-game playoff for the Ivy League championship that sends the winner to the NCAA tournament. Branson School standout Oliver McNally stars for Harvard. The San Francisco resident averages 10.1 points per game.

The Tigers forced a tie for the title and the playoff with a 70-58 win over Penn on Tuesday night. Princeton and Harvard will play Saturday at Yale’s John J. Lee Amphitheater in New Haven, Conn., in a one-game playoff for the league’s automatic berth to the NCAA tournament.

It will be the seventh playoff in Ivy history, and the first since Yale, Penn and Princeton were tied at the end of the 2001-02 regular season — the only three-way tie in conference history.

Kareem Maddox scored 21 of his 23 points in the second half for the Tigers (24-6, 12-2 Ivy).